Earlier quoted context omitted.
I wish they sold BOOKS. My local B&N (15 miles north of Philly) has converted 25% of shelf space to toys. The tradeoff: just 2 shelves of computer-related books, now titled "Technology", most of which are about using Windows or Office. Does this trend reflect the dumbing down of B&N or its customers?
It reflects the reality of the internet existing and it being the year 2023 not 2003 I think? Why on earth would a book store carry any relevant computer technical books nowadays?
Because books can explain concepts better than any other medium. Books aren't great for reference/howto because that info goes out of date quickly. E.g. I'm not going to buy a book about browser APIs, I'll use MDN. But I will buy a book about SPA design or HCI. I'll certainly buy a book about a topic like performance analysis or comparing different approaches to ORMs or practical cryptography. The specific libraries will go out of date quickly, but the concepts will be useful for a very long time (and even the specifics will be at least somewhat correct for longer than you'd expect).
Like everyone else, technical people have had their attention span removed, segmented, and captured by capital such that "sitting down and reading a book (about a technical subject)" is met with horror. There is hope: the brain is quite plastic and even if you've let yours soak in the sensation stew of your phone 8 hours a day for years now, you can regain this important function soon enough. A well-written tech book is such a pleasure! A long narrative, coherent and filled with nuance...it's an important style of communication and I don't think we want to lose it.